MARIN COUNTY, CA (KGO) -- A Marin County man has filed suit against the Marin County Sheriff's Department for an incident in which he says law enforcement officers went too far. Peter McFarland was Tased inside his own home as his wife watched, begging officers to stop.

On June 29, 2009 McFarland and his wife Pearl were returning home from a charity fundraiser just before midnight. McFarland injured himself as he stumbled and fell down the long steps to his front door.

"Mainly it was to my knee and the front of my leg, my shin," McFarland said.

"All of a sudden, they just showed up, they came in here like there was a fire going on, like a gunfight was going on," McFarland said.

What happened in the following minutes was captured on a camera mounted on the deputy's Taser.

The deputy tells McFarland he is going to take him to the hospital because he may be suicidal.

"We want to take you to the hospital for an evaluation, you said if you had a gun, you'd shoot yourself in the head," the deputy can be heard saying.